patch-2.4.27 linux-2.4.27/include/net/sock.h

• Lines: 48
• Date: 2004-08-07 16:26:06.493422342 -0700
• Orig file: linux-2.4.26/include/net/sock.h
• Orig date: 2004-04-14 06:05:40.000000000 -0700

diff -urN linux-2.4.26/include/net/sock.h linux-2.4.27/include/net/sock.h
@@ -433,6 +433,20 @@
 
 	unsigned long last_synq_overflow; 
 
+/* Receiver side RTT estimation */
+	struct {
+		__u32	rtt;
+		__u32	seq;
+		__u32	time;
+	} rcv_rtt_est;
+
+/* Receiver queue space */
+	struct {
+		int	space;
+		__u32	seq;
+		__u32	time;
+	} rcvq_space;
+
 /* TCP Westwood structure */
         struct {
                 __u32    bw_ns_est;        /* first bandwidth estimation..not too smoothed 8) */
@@ -445,6 +459,26 @@
                 __u32    rtt;
                 __u32    rtt_min;          /* minimum observed RTT */
         } westwood;
+
+/* Vegas variables */
+	struct {
+		__u32	beg_snd_nxt;	/* right edge during last RTT */
+		__u32	beg_snd_una;	/* left edge  during last RTT */
+		__u32	beg_snd_cwnd;	/* saves the size of the cwnd */
+		__u8	do_vegas;	/* do vegas for this connection */
+		__u8	doing_vegas_now;/* if true, do vegas for this RTT */
+		__u16	cntRTT;		/* # of RTTs measured within last RTT */
+		__u32	minRTT;		/* min of RTTs measured within last RTT (in usec) */
+		__u32	baseRTT;	/* the min of all Vegas RTT measurements seen (in usec) */
+	} vegas;
+
+	/* BI TCP Parameters */
+	struct {
+		__u32	cnt;		/* increase cwnd by 1 after this number of ACKs */
+		__u32 	last_max_cwnd;	/* last maximium snd_cwnd */
+		__u32	last_cwnd;	/* the last snd_cwnd */
+		__u32   last_stamp;     /* time when updated last_cwnd */
+	} bictcp;
 };